Bearing-removing process



July 23, 1929. J HEKTNER 1,722,143

BEARING REMOVING PROCESS Filed Jan. 5, 1928 #15 J91- ronwzns.

Patented July 23, 1929.

UNITED STATES v PATENT, .o F1cE .-.J

Joni. HEKTNER, or cniq'ron, onro, rissrenon TO THE TIMKEN Ecumenism eon,

lPAN Y, or CANTON, orxro, A GORP ORAT ION 'OEb11119. U H

BEARING-REMOVING ZERO GESS.

Application filed January 5, 1928. Serial No, 2144,574; i

This invention relates to roller bearing axle constructions of the type wherein the axle. The principal object of the present;

invention is to devise a practical and economical process of removing the inner race way member from the axle. The HIVGIltlOIl consists in the process hereinafter described.

In the accompanying drawing, which forms part of this specification and wherein like symbols refer to like parts wherever they occur, v

Fig. 1 is a longitudinal sectional viewof the end portion of a roller bearing axle construction provided with an inner raceway member adapted for removal according to my process; and

Fig. 2 is a similar view of the axle construction with parts removed to permit the end of the axle to be engaged by the ram of the press and the rib of the inner raceway member to be engaged by the pulling mechanism of said press.

The roller bearing axle construction illustrated in the accompanying drawing comprises a solid axle A with a wheel B pressed thereon near 1ts end and with the portion of the axle located outwardly from said wheel extending into the cylindrical chamber of a housing or journal box G through a circular opening in theinner wall thereof. The end portion of the axle Aisof reduced diameter and is rotatably supported in the journal box C by means of double cone roller bearing D interposed between said axle and journal box.

As shown in the drawing, the roller bearing D comprises a tubular inner raceway member 3 press-fitted on the reduced end portion of the axle with its inner end abutting against the outer end of a spac ng sleeve or collar 4:, whosev inner end abuts against the shoulder 5 formed by thereduced. ortion of, said axle. The axle terminates eyond the inner raceway memberS in a reduced portion 6 which threaded to receive a nut 7 which bears against the outer end of said member and thus serves to hold the same on the axle in abutting relation to the spacing sleeve or collart i. The inner raceway member 8" has a circumferential, thrust rib, 8 locatedabout midway of its length and two conical faces 9 thattaper from said rib towards the respect1ve ends of said inner raceway'mem-n ber. Cooperating with the-bearing surfaces; 7

9 of the doubly conicalbearing member are 10 that are assembledin suitable cages 11 and cooperate with conical cups or outer. raceway members .12 seated within the .cyhndrical chamber in the housing or. journal box C which encasesthe end ortion of the axle A. The. bearing box p, serves as a reservoir for lubricant and has its outer end closedby an end closure cap or cover .13 whichis bolted or otherwise-removabl-y se-,

cured to the outer end of said journalgbox v and, has an inwardly extending annular flange 14 adapted to fit within thecylin-t drical chamber in the journalbox and abut against the outer end of the 'two cups. :or raceway members'l2 of. the bearing D. The innerrof thetwo cups or raceway members 12 seats against an annular shoulderwl-5. formed in the inner wall of the journal-box.

With the above arrangement, when it is desired to remove the inner raceway member 3 from theend of the axle, the end cover 13, the ad usting nuts 7 theouterof the two bearing cups 12' andthe, outer of the bearing cages 11, together with bearing rollers10 assembled therein, are first removed. from the endof the axle construction in. the order named. The axle construction; is then placed in asuitablepress with the end .of the axle A in position to ;be engaged by the ram 16 of the press. The journalPbox C with the inner ofthe two bearing cups 12 therein, is then slid inwardly along the axle a distance sufiicient to permit the inner 'cageand the series of bearing rollers mounted therein to be also. slid inwardly along'the bearing cone 3 far'enough to provide-a space between the circumferential rib. 8 on said cone and the inner ends of said hearing rollers, thereby adapting said rib 'tobe engaged by' a pulling implement 1? suitable for removing it from the axle; 1

As shown in Fig. 2, thepulling'implement 17 is made in thefform ,of; a split sleeve", which surrounds the abutting 'ends of-the axle A and ram 16 ,and'the outer .poruoa of the bearing cone Sand'isprovided at'its inner end with an inwardly extending rib or fiange .18 that hooks over. the rib S of said cone. The outer end:.1of :the tube is also V clrcular series of conical antifrietion :rollers preferably provided with an inwardly extending rib or flange 19, which seats within an external groove 20 in a ball plate 20, which isv provided with a central bore in which the ram 16 reciprocates and has a ball and socket connection with a socket plate 21.

As shown in the drawing, the segmental.

pulling tube is clamped to the bearing cone -3 and to the ball plate 20 by means of split shown in Fig. 2, the stops, such as the parallels 25 01 the press, are positioned against the socket plate 21 and the ram 16 is made to bear axially against the end of the axle A and thereby presses the axle through the cone 3, which is held against movement with said :axle by means of the pulling tube 17 When the cone is removed,'the inner series of rollers, and the journal box with the inner bearing cup may be readily removed. If desired, the cone may be stripped from the end of the axle by using the ram as a stop for the axle and by moving the socket away from the end of the axle. 7

'While the foregoing description is particularly applicable to'roller bearing" axle constructions of the type illustrated, it is also applicable to other constructions; and, of course, some other pulling arrangement may be used instead of the arrangement shown. What I claim is: r 1. The process of removing an antifriction bearing from an axle construction wherein the end portion of the axle'is'enclosed in a housing and the roller bearing is interposed between said axle and said'housing and comprises an outer raceway member: mounted in said housing, a ribbed inner raceway member mounted on said-axle and anti-friction members disposed between said raceway members, which consists in removing the outer raceway member and the anti-friction members cooperating therewith, hooking a pulling implement over the rib-of said inner raceway member, and then causing relative movement between said ulling implement and said axle longitudina 1y of the latter to remove said inner raceway member therefrom. 1

2. The process of removing an antifriction hearing from an axle construction wherein the end portion of the axle is enclosedin a housing and the roller bearing is interposed between said axle and said housing and comprlses an -outer raceway member 'mount'ed in said .housing,"a ribbed inner raceway member mounted 'on' said axle and antifriction membersdisposed between said raceway 'members,.which consists in removing .the outer raceway member and the antiable for plate friction members cooperating therewith, engaging the inner face of the rib of said inner raceway member with an implement suitpreventing inward vmovement thereof, and then pressing said axle through said inner raceway member.

1 .3. The process of removing a roller bearing from an axle construction wherein the end portion oftheaxle is enclosed in a housing and the roller bearing is interposed between said axle and said housing and includes a 'ci'rcumferentially ribbed inner raceway member press-fitted on said axle and bearing rollers cooperating with said inner raceway member, which consists in removing the bearing rollers, engaging the inner face of the circumferential rib of said raceway member with a pulling implement, and

then causing relative movement between said pulling implement and said axle longitudinally of the latter to remove the inner raceway member therefrom.

4:. The process of removing a roller bearing from an axle construction wherein the end portion of the axle is enclosed in a housing and the roller bearing is interposed between said axle and saidhousing and comprises a circumferentially' ribbed inner raceway member press-fitted on said axle and bearing rollers cooperating with said inner raceway member, which consists in removing the bearing rollers, engaging inner edge of the circumferential rib of the inner raceway member with an implement suitable for preventing inward movement thereof, and then pressing said axle through said inner raceway member. 1

5; The process of removing a roller bearing from an axle construction whereinthe end of the axle is enclosed in a housing and V the roller'bearing is interposed between said housing and said axle andcompr-ises a coni- V cal cup mounted-in said housing, a cone press-fitted on said axle and having a circumferential thrust rib,'and conical bearin rollers interposed between said cup and said cone, which consists in removing the cup and the bearing rollers, engaging the inner edge of the rib of said cone with'a suitable pulling implement, and then causing relative movement between said pulling implement and said axle longitudinally of the latter to strip the cone therefrom,

6. The process of removing a conical roller bearing from an axle construction wherein the end portion of theaxle is enclosed in a housing and the roller bearing is interposed between said housing andfsaid axle and comprises a conical cup mounted in said housing, a cone mounted on said axle and having 'acircumferential rib, and 'conical bearing rollers interposed between said cup and said cone, which consists in remov with an implement adapted to prevent inward movement thereof, and then pressing the end of said axle through said cone.

7. The process of removing a roller bearing from an axle construction whereinthe end portion of the axle is enclosed in a housing and the roller bearing is interposed between the axle and the housing and comprises an inner bearing member mounted on said axle and having raceways separated by a circumferential thrust rib, series of antifriction members for the raceways of said inner bearing member, and outer raceway members for the series of antifriction bearings mounted in said housing, which consists in removing the endmost outer raceway member and the endmost series of antifriction members, engaging said rib with a suitable pulling implement, and then causing relative movement between said pulling implement and said axle endwise of the latter to remove the inner raceway member therefrom.

8. Theprocess of removing a roller bearing from an axle construction wherein the end portion of the axle is enclosed in a housing and the roller bearing is interposed between the axle and the housing and comprises an inner bearing member mounted on said axle and having raceways separated by a circumferential thrust rib, series of antifriction members for the raceways of said inner bearing member, and outer raceway members for the series of antifriction bearings mounted in said housing, which consists in removing the endmost outer raceway member and the endmost series of antifriction members, sliding the housing together with the remaining outer raceway member and the remaining series of antifriction members inward on said axle far enough to permit the rib of the inner raceway member to be engaged by a pulling implement, and then causing relative movement between said pulling implement and said axle endwise of the latter to remove the inner raceway member therefrom.

9. The process of removing a roller bearing from an axle construction wherein the end portion of the axle is enclosed in a housing and the roller bearing is interposed between the axle and the housing and comprises a double cone mounted on said axle and having conical raceways separated by circumferential thrust rib, series of conical bearing rollers for the conical raceways of said cones and conical cups mounted in said housing and cooperating with said series of rollers, which consists in moving the endmost cup and the endmost series of rollers, sliding the housing together with the remaining cups and the remaining series of rollers inward on said axle far enough to permit the rib of the cone to be engaged by r a pulling implement, and then causing relative movement between said pulling implement and said axle endwise of the latter to remove the cone therefrom.

Signed at Canton, Ohio, this 29th day of December 1927.

JOEL HEKTNER. 

